A = loved it, one of the best movies I've ever seen
A- = liked it a hell of a lot, almost loved it
B+ = liked it a lot
B = solid, liked it
B- = decent, worth seeing with some reservations
C+ = liked things about it, but falls just short
C = watchable, but didn't like it
C- = really didn't like it, considered not finishing it
D+/D/D-/F = various shades of hatred